diff options
| author | Suzuki K Poulose <suzuki.poulose@arm.com> | 2021-02-01 11:13:25 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-02-04 17:00:32 +0100 |
| commit | 6e736c60a9fe905b3e4f4b07171a31ad602d56d2 (patch) | |
| tree | af28bea596e4d2e1fafe0abc792c79323eec6321 /drivers/hwtracing/coresight/coresight-tmc-core.c | |
| parent | df81b43802f43c0954a55e5d513e8750a1ab4d31 (diff) | |
coresight: Introduce device access abstraction
We are about to introduce support for sysreg access to ETMv4.4+
component. Since there are generic routines that access the
registers (e.g, CS_LOCK/UNLOCK , claim/disclaim operations, timeout)
and in order to preserve the logic of these operations at a
single place we introduce an abstraction layer for the accesses
to a given device.
Link: https://lore.kernel.org/r/20210110224850.1880240-4-suzuki.poulose@arm.com
Cc: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210201181351.1475223-6-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-tmc-core.c')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-tmc-core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tmc-core.c b/drivers/hwtracing/coresight/coresight-tmc-core.c index 8169dff5a9f6..e61b75be66b6 100644 --- a/drivers/hwtracing/coresight/coresight-tmc-core.c +++ b/drivers/hwtracing/coresight/coresight-tmc-core.c @@ -456,6 +456,7 @@ static int tmc_probe(struct amba_device *adev, const struct amba_id *id) } drvdata->base = base; + desc.access = CSDEV_ACCESS_IOMEM(base); spin_lock_init(&drvdata->spinlock); |